.\" This page was automatically generated. Do not edit! .\" .TH PLRGBHLS 3plplot "September, 2014" "" "PLplot API" .SH NAME \fBplrgbhls\fP - Convert RGB color to HLS .SH SYNOPSIS \fBplrgbhls\fP(\fIr\fP, \fIg\fP, \fIb\fP, \fIp_h\fP, \fIp_l\fP, \fIp_s\fP) .SH DESCRIPTION .P Convert RGB color coordinates to HLS .P Redacted form: General: \fBplrgbhls(r, g, b, p_h, p_l, p_s)\fP Perl/PDL: Not available? Implemented as plrgb/plrgb1? .P This function is used in example 2. .SH ARGUMENTS .TP \fIr\fP (PLFLT, input) Red intensity (0.0-1.0) of the colour .TP \fIg\fP (PLFLT, input) Green intensity (0.0-1.0) of the colour .TP \fIb\fP (PLFLT, input) Blue intensity (0.0-1.0) of the colour .TP \fIp_h\fP (PLFLT *, output) Pointer to hue, in degrees on the colour cone (0.0-360.0) .TP \fIp_l\fP (PLFLT *, output) Pointer to lightness, expressed as a fraction of the axis of the colour cone (0.0-1.0) .TP \fIp_s\fP (PLFLT *, output) Pointer to saturation, expressed as a fraction of the radius of the colour cone (0.0-1.0) .SH AUTHORS Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history. .SH SEE ALSO PLplot documentation at http://plplot.sourceforge.net/documentation.php.